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R. HALLENSTEIN. HATOHWAY DOOR OPERATING DEVICE.

Nal-160,638.

Patented Oct. 6, 1891.

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R. HALLENSTEIN.

HATGHWAY DOOR OPERATING'DEVIGE.

No. 460,638. Patented Oct. 6, 17891.

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- premises from gaining admission from one ing or confining the flamesto the floor in 4ings for lifts and stairs become a great source STATESPATENT OFFICE..v

REUBEN HALLENSTEIN, OF MELBOURNE, VICTORIA. I

HATCHWAY-DOOR-OPERAT-ING DEVICE.

SPECIFICATION forming part of Letters Patent No. 460,638, dated October6, 1891.

Application filed October 13.1890. Serial No. 368,046. (No model.)Patented in England October l. 1890, No. 15,541; in Belgium October l,1890, No. 92,171; in Turkey October l, 1890, No. 196,A and in ItalyNovember 13, 1890,11VI, 82.

To all whom it may 0071.067177.:

Be it known that LREUBEN HALLENSTEIN, merchant, a citizen of andresident in Lonsdale street, in the city of Melbourne, Colony ofVictoria, have invented a new and useful Mechanism for Devices forOperating Hatchway- Doors, (which has been patented in Great BritainOctober 1, 1890, No. 15,541; in Belgium October l, 1890, No. 02,171; inTurkey October 1, 1890, No.196, and in Italy November 13, 1890, LVI,82,) of which the following is a specification.

Thisinvention relates to apparatus whereby openings in iioors ofbuildings-such as those caused by lifts or stairways-can be quicklyopened or closed when required-as, for instance, for the purpose oflocalizing tire to a limited area in any part of the building, so thatit can be successfully coped with and shortly got under. The closing ofsuch openings is also useful for preventing burglars and other personswho may be illegally on the iioor to another forpurposes of plunderorescape and for the prevention of accidents resulting from such aperturesbeing left open, particularlyin the case of lift-openings, which areordinarily a great source of danger to those whose duty calls them to benear such openings. At present when a rc breaks out in a building(especiallya high one,in which the evil is intensified and aggravated toan enormous extent) no means exist for localizwhich the outbreak takesplace; but the openof danger, as they act as great iiues, creatingdrafts which increase the combustion, with the result that life andproperty are frequently sacrificed to the flames. The apparatus forclosing and opening these apertures can be actuated automatically bylifts, or in the absence of lifts it can be worked by handpower from anyfloor or level in the building.

The main feature of the apparatus is a balanced vertical rod, to whichis attached at any part of its height a rack for actuating a toothedWheel or equivalent connections for the purpose of opening and closinghinged or sliding doors, as I shall describe, referring to theaccompanying drawings.

Figures 1 and 2 are front and side elevations, respectively, of theapparatus, the floors at the landing' being shown in section.

Throughout the several ligures similar letters of reference denotesimilar parts.

A is a vertical rod guided by friction-roll` ers A. To the rod A'in asuitable position is attached a rack A2, engaging' with a toothed WheelA3 on a transverse shaft A1, mounted in bearings A5. On the shaft A'1are fixed toothed wheels A1", which gear with horizontal racks A7 on thesliding door B. Thisdoor B runs on anti-friction rollers B', Working inguide B2 on the iioor. The lower part A? of the rod A is preferably madeof square section working in guide-brackets A, the rod A being thusprevented from turning. The

lower end is rounded at A10 to receive the n-A ger A11, which can turnthereon to an extent limited by stops A12. The apparatus is thrown outof gear, allowing the lift to ascend and descend without opening orclosing doors by turning this iinger A11 about one-quarter round, as isshown in Figs. 2 and 3. To the upper end of the rod A is attached a ropeA13, passing over a pulley A14 and carrying a counter-weight A15, whichactuates the rod A when it is released by the lift.

In Fig. 3 the sliding door B is shown to be actuated by the alternativemethod of levers and rods. The rod A has a pin E, carrying a roller E',which works in a slot E2 in one arm of a bell-crank lever E3, centeredat E1. To the other arm E5 of this lever is attached a connecting-rodE6, which is linked to the door B. The pivot E4 is carried by a bracketE1.

G is the cage or lift,suspended and worked by rope G over the pulley G2.

G3 are the guides, and G1 the clamps for same.

H are joists, and H the floor of the building.

The Idoors B are made in halves, so that the rope or chain can passthrough a hole formed partly in each half, which may be hushed withindia-rubber or similar material.

The finger A11 on the vertical rod A being' placed under the door of thelift G when the llift is at its lowest level in the building, the

doors B or D on all floors are closed. W'hen the lift G ascends, the rodA is caused to aseend by the counter-Weight A15 and the rack Ai actingthrough the wheels A3 and AG on the horizontal rack A7, the door B isopened so as to allow the cage G to ascend. The door thereafter' remainsopen till the cage G again descends on the finger A11, depressing therod A, whereupon the doors on the several oors are closed and remainclosed till open ed again by the ascent of the cage G.

l. In apparatus for opening and closing apertures of buildings by meansof sliding doors, the combination of the slidable door B, running onanti-friction rollers B in guide B2, the vertical rod A, moving inguides A', the transverse shaft A1, mounted in bearing A5, the toothedwheel A3 on said shaft, the rack A2, attached to rod A and engaging saidtoothed wheel, the horizontal racks A7 on the door B, the toothed wheelsAG on shaft A1, engaging with racks A7, the guidebrackets'Ag, in whichthe lower squared part Ai of rod A Works, the nger A11, adapted to turnon the end A111, the stops A12 for limiting the movement of said finger,the rope A13, carrying a counter-weight A15 and passing over pulley A11,and the car or cage for actuating the doors, as set forth.

2. In apparatus for opening and closing apertures of buildings by meansof doors, the combination, with the door, of a vertical rod A, movablein guides A and having the squared part A8, the guide-brackets A9, inwhich the lower squared part A8 of rod A works, a finger A11, adapted toturn on the end of the rod A, the stops A12 for limiting the movement ofthe iinger,arope A13, carrying counter-weight A15 and passing overpulley A11, the pin E, and the car or cage for actuating the same,substantially as described.

In witness whereof I have hereunto set my hand in presence of twowitnesses.

REUBEN HALLENSTEIN.

Witnesses:

JONATHAN BEAR,

Of lllelbour'ne, Patent Agent. CHARLES HARRISON,

'Clerk at United States Consulate.

